Spaceborne detectors 中国斜学我术大学 University of Science and Technology of China pair conversion telescopes Large FOV (~3 sr) 0.1~1000GeV small effective area (~1 m^2) Fermi LAT moderate PSF(0.1-1 degree) continuous monitoring DampeSpaceborne detectors • pair conversion telescopes • Large FOV (~ 3 sr) • 0.1~ 1000 GeV • small effective area (~ 1 m^2) • moderate PSF (0.1 - 1 degree) • continuous monitoring Fermi LAT Dampe